Drink Tracker – free
Another iPhone option, Drink Tracker doesn’t come with an actual apparatus, but as a record keeper of the user’s alcohol consumption, it’s a cracker. The only tasks required of the user are to create an initial profile – including physical stats such as height and weight — within the app and then start the evening’s festivities. As the night goes on, users can hit up the one-tap drink menu to quickly enter the cocktails and spirits imbibed, and the app will keep a record. It will then use this info to present an accurate representation of the user’s BAC. Of course, the user must be honest about his or her drinking behavior, and be diligent in inputting it as well.